diff --git a/configs/MPC8313ERDB_NAND_33_defconfig b/configs/MPC8313ERDB_NAND_33_defconfig
index c64b4e8..79a9c27 100644
--- a/configs/MPC8313ERDB_NAND_33_defconfig
+++ b/configs/MPC8313ERDB_NAND_33_defconfig
@@ -1,6 +1,7 @@
 CONFIG_PPC=y
 CONFIG_SPL_NAND_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
+# CONFIG_MMC is not set
 CONFIG_MPC83xx=y
 CONFIG_TARGET_MPC8313ERDB=y
 CONFIG_OF_BOARD_SETUP=y